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Natali [406]
2 years ago
11

PLEASE HELP ITS A TEST

Mathematics
2 answers:
Tatiana [17]2 years ago
7 0
It would def be 180 because like he/she said up
There the rotates
xeze [42]2 years ago
5 0
It is 180 because it rotates
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Which equation best describes the line of best fit?
Andrej [43]
The y-value changes from 10 to 70 as the x-value changes from 0 to 10. That makes the slope (70 -10)/(10 -0) = 6, and the y-intercept = 10.

Selection A is the appropriate equation.
8 0
3 years ago
4w^2+49=-28w solve for w<br><br> plz answer
boyakko [2]

Move all terms to one side

4w^2 + 49 + 28w = 0

Rewrite 4w^2 + 49 + 28w in the form a^2 + 2ab + b^2, where a = 2w and b = 7

(2w)^2 + 2(2w)(7) + 7^2 = 0

Use the Square of Sum: (a + b)^2 = a^2 + 2ab + b^2

(2w + 7)^2 = 0

Take the square root of both sides

3w + 7 = 0

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<u>w = -7/2</u>

3 0
3 years ago
George plans to cover his circular pool for the upcoming winter season. The pool has a diameter of 20 feet and the cover extends
MariettaO [177]

For the circular cover we have:

A) The area is 379.94 ft²

B) The length of the rope must be 68.2 ft

<h3>How to get the area of the cover?</h3>

Remember that the area of a circle of radius R is given by the formula:

A = pi*R^2

Where pi = 3.14

In this case, the diameter of the pool is 20ft, then the radius is:

R = 20ft/2 = 10ft

And it must extend 12 inches beyond, then the radius of the cover must be:

R = 10ft + 12in

Now, we know that 1ft = 12 in, then we can rewrite the radius as:

R = 10ft +1ft = 11ft

Then the area of the cover is:

A = 3.14*(11ft)^2 = 379.94 ft^2

B) now we want to get the length of the rope, we know that the rope runs along the cover, then the length of the rope must be equal to the circumference of the cover.

Remember that the circumference of a circle of radius R is:

C = 2*pi*R

Then the length of the rope will be:

C = 2*3.14*11ft = 68.2ft

If you want to learn more about circles:

brainly.com/question/1559324

#SPJ1

7 0
2 years ago
The value of 14 is 35% of
neonofarm [45]

Answer:

40

Step-by-step explanation:

(35/100) of X = 14

(7/20) × X = 14

X = 14 × 20/7

X = 40

4 0
3 years ago
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Which square--large medium small--covers more of the plane? Explain why.
GrogVix [38]
Large because it is bigger.Common sense.
4 0
3 years ago
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